John n



(No Model. 2 SheetsSheet 1..

L J. N. BRIGGS.

V APPARATUS FOR PLANING GJIKES 0F ICE. No. 367,267. Patented July '26, 1887.

Inventor:

J @jI/fll/Y/i JOHN M Bmass,

(No Model.) 2 SHee'nsSheet 2.

J. N BRlGGS.

APPARATUS FOR PLANING CAKES OF ICE.

No. 367,267. Patented July 26, 1887.

Fisk-7. ifi/fims'sw: Inventor:

5 JOHIVMBRIGG) 72y AK. al);

dilarn/qy,

UNIT D STATES JQHN N. BRIGGS, OF OOEYMANS, NEWV PATENT YORK.

APPARATUS FOR PLANING cakes OF ICE.

SPECIFICATION forming part 5f Letters Patent NO. 367,267, dated July 26,. 1887.

Appliration filed November 23, 1886. Serial No. 219,611. (No model.)

New York, haveinvented new and useful Improvements in Apparatus for Planing Cakes of Ice for Storing, of which the following is a specification.

My .invention relates to improvements on the apparatus for which Letters Patent ofthe United States, N 0. 346,57 6, were granted to meon the 3d day of August, 1886; and the object of my present improvements is to facilitate the adjustment of the planing device and to render the apparatus more effective in its operation. of the mechanism illustrated in the accompanying drawings, which, being herein referred to, form part .of this specification, and in which-- Figure 1 is a side elevation of my apparatus applied to an inclined elevator for ice-houses; Fig. 2, a longitudinal section, and Fig. 3 a perspective view, of same; Fi 4, an enlarged front elevation of one of the end shoes for the cutter-head, and Figs. 5 and 6 side elevations of same.

I As represented in the drawings, the inclined elevator or railway A (of which only a short portion is shown) is of a form commonly used for raising cakes of ice to the house in which they are stored, and on which the cakes'are moved by means of endless chains that are driven by any suitable motive power; but, while it should be understood that said chains are used inthis apparatus, they form no part of my invention, and are therefore omitte from the drawings.

B represents guide-frames for the cutterhead of the planing device, which are erected on the string-pieces a of the inclined elevator. Said guide-fran1es may be made'of angle-bars that are arranged so as to form parallel slots b, which are preferably fixed at right angles to the upper line of the elevator; but they may be established at any other suitable angle. .The angle-bars at the opposite sidesof the slots b are held together by clamps b,' and are supported in position by the braces b.

O is the cuttenhead, which consists of a crossplate, 0, having at each end ashoe, D, by which it is held at an acute angle to the plane I attain this object by means of inclination of the elevator. Said cuttcrhead is provided with a series of chisels or cutters, E, which are independent of each other, each being separably removable from said cutter-head, as fully set forthin myprior patent, hereinbefore referred to. The shoes D are arranged to extend over the upper surface of both string-pieces a, and are provided with lugs or fiangesd, which are fitted to slide up and down in the slotsbof the guide-frames. Each of said shoes is also provided with a toothed rack, d, which extends upwardly in the slot bin which it is contained. Said rack is preferably pivoted, as at d*, to the upper part of the flange d, for the purpose of lessening the liabilityof said rack becoming broken from the shoe when the cutter-head issubjected to any sudden strain or jar. The racks d engage with pinions f, that are secured to a cross-shaft, F, that is fitted to rotate in journal-boxes f, secured to the frame-work of the elevator or to the guide-frames. The shaft F is provided at one end with a series ofra dial arms'or hand-levers, f one of which should have. a counter-weight, f, to balance the weight of the cutter-head. Springs G, attached to the lower side of the cutter-head, are

ter-head, and by said springs the cake of ice being operated on by the cutters is prevented chocks or blocks H are provided to fit upon the upper side of the st-ring pieces a, so that the shoes of the cutter-head will obtain afirm bearing thereon. Said chocks are retained in position by pins h or other suitable means, so that when the cutter-head is raised therefrom no accidental displacement of said chocks is likely to occur, and by havinga number of said chocks of different thicknesses the cakes of ice may be reduced to a thickness corresponding to that of the chocks used.

The operation of my apparatus is as follows: The cakes of ice are forced. up the inclined elevator by means of endless chains,in the usual manner, the cutter-head Obeingheld down by the operative in charge by means of the arms f When the ice reaches the cutadapted to bear upon the upper surface of the cakes of ice as the latter pass under the cutter-hcad C it will encounter the cutters E, which, as the ice is forced along, will penetrate the cake at the required depth and remove any excess of thickness therefrom. In some instances it is preferred to plane off the top of each cake of ice without regard to bringing all the cakes to a uniform gage of thickness, and in such cases the chocks H may be dispensed with. A little experience will enable the operative in charge to quickly determine at sight the best position for the cutter-head during its operation on the approaching cake of ice, and said cutter-head is under such perfect and positive control of the operalive that he can easily maintain it at the position where its teeth first enter the cake of ice during the time required to effect the planing of said cake. \Vhen used in the way last described, I prefer to make the cutters E in the form shown in Figs. 7, 8, and 9, which are respectively an enlarged side elevation,an inverted plan view, and an end elevation, of a modified form of my cutter or chisel, which, while it has the sharp diamond shape point of the cutters shown in my prior patent herein referred to, has its cuttingedges formed oftwo beveled facets, e, by which a ridge or heel, e, is obtained, and the latter, by bearing in the lower part of the channel formed in the ice by the action of each cutter, lends material aid in keeping the ice down toitsplace against the tendency of the cutters to raise the cakes and engaging in said racks, and the levers 0r arms for operating said pinions, all constructed, substantially as described, sothat the depth of the cut may be directly and positively regulated by means of thelevers, as herein specified.

2. The chisel or cutter E, formed of aprismatic bar having a sharp entering-point at its lower end, with cutting-edges formed at acute angles to the front line of the cutter, and two facets, e, which are beveled back from the cutting-edges and by which a central ridge or heel, c, is formed at such an angle that said ridge will conform to the line of the cut produced by the entering-point of said cutter, as and for the purpose herein specified.

JOHN N. BRIGGS.

\Vitnesses:

WM. H. Low, 8. B. BRE\VER. 

